.box{display:none;width:397px; height:300px; margin:30px auto;}
.ok{width:200px; height:100px; margin:0 auto; text-align:center; background:#999; line-height:100px; color:#FFF; display:none; }

.tBox{
    width:397px; height:49px; background:url(bak.png) no-repeat; margin-top:20px;}
.tiaoT{
    width:0px; height:49px; background:url(pro.png) no-repeat; text-align:center;
    font-family:Tahoma; font-size:18px; line-height:48px;
}